(1) Matching nut: easy to disassemble, fast installation speed, excellent electrical conductivity (2) One molding: the material is not easy to oxidize, resistance, stable electrical performance and effectively increase the service life of the cell (3) High conductivity: tighten the nut to increase the connection fit, avoid excessive resistance, energy saving and consumption reduction (4) Safe and : there are multiple layers of thin copper sheet welding in the middle to avoid thermal expansion and contraction (5) Flexible use: product consistency is good and can be freely combined Battery soft copper connector hole to hole, 74mm, 3mm thickened connector, suitable for 280Ah 320Ah Lifepo4 battery use. Model: Copper busbar connector 280Ah-320Ah Lifepo4 battery Thickness: 3 mm Hole: 6 mm Hole to hole (center) size: 74mm Adapter screw: M6 Usage: Suitable for 3.2V 280Ah 302Ah 310Ah 320Ah lithium iron phosphate battery connection. Note: Installation guide not included, Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:Plastic Package Contents: 3 * Battery Flexible Copper Connecter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.